A plugin I made
It makes 'colorcolumn' only show when you get close to it.
:WidthGuideEnable and :WidthGuideDisable
Widthguide has 4 options which you can set with let g:option_here=value or in lua: vim.g["option_here"] = value
-- defaults
-- the column that the widthguide will show on
vim.g["widthguide_column"] = "80"
-- if your cursor is past here then the widthguide shows
vim.g["widthguide_warn_column"] = "70"
-- when your cursor is past "widthguide_warn_column"
vim.g["widthguide_warn_colour"] = "darkred"
-- when your cursor is past "widthguide_column"
vim.g["widthguide_past_colour"] = "red"